added a docker-compose file and an entrypoint shell script to run a test server for zer.ooo

docker/docker-compose.yml

@@ -0,0 +1,12 @@
+version: "3.6"
+
+services:
+  zer.ooo:
+    image: d.xr.to/php
+    container_name: zer.ooo-test
+    volumes:
+      - ../:/sites/zer.ooo
+    working_dir: /sites/zer.ooo
+    ports:
+      - 127.0.0.1:80:80
+    command: ./docker/entrypoint.sh

docker/entrypoint.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+echo 'extension=iconv.so' >> /etc/php/php.ini
+echo 'extension=sqlite3.so' >> /etc/php/php.ini
+
+test -d vendor || ./bin/setup_web
+test -d storage/ca || mkdir storage/ca
+test -d ca.crt || ./bin/setup
+
+php -S 0.0.0.0:80 -t public public/index.php